*SUPPORT*
IN: tufa dax wif OUT: BLUE GREEN BLUE GREEN
IN: dax tufa kiki tufa OUT: BLUE GREEN BLUE GREEN BLUE
IN: dax kiki tufa OUT: BLUE GREEN GREEN
IN: dax tufa wif OUT: GREEN BLUE GREEN BLUE
IN: zup OUT: PURPLE
IN: fep wif OUT: RED RED
IN: dax OUT: GREEN
IN: fep kiki fep OUT: RED RED RED
IN: tufa wif OUT: BLUE BLUE
IN: zup zup kiki dax tufa OUT: GREEN BLUE PURPLE PURPLE PURPLE PURPLE
IN: tufa lug zup dax kiki zup wif OUT: PURPLE PURPLE PURPLE GREEN BLUE PURPLE GREEN BLUE
IN: zup zup dax wif OUT: PURPLE PURPLE GREEN PURPLE PURPLE GREEN
IN: zup fep OUT: PURPLE RED
IN: fep kiki dax zup OUT: GREEN PURPLE RED RED

*QUERY*
IN: dax zup kiki tufa wif OUT: BLUE BLUE GREEN PURPLE GREEN PURPLE
IN: tufa OUT: BLUE
IN: zup dax OUT: PURPLE GREEN
IN: tufa tufa zup tufa OUT: BLUE BLUE PURPLE BLUE
IN: tufa zup zup OUT: BLUE PURPLE PURPLE
IN: fep wif lug zup OUT: PURPLE RED RED
IN: tufa wif wif OUT: BLUE BLUE BLUE BLUE
IN: dax wif OUT: GREEN GREEN
IN: fep fep wif OUT: RED RED RED RED
IN: fep OUT: RED

*GRAMMAR*
zup -> PURPLE 
 tufa -> BLUE 
 dax -> GREEN 
 fep -> RED 
 x1 kiki x2 -> [x2] [x1] [x1] 
 x1 wif -> [x1] [x1] 
 x1 lug x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 